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Internal water pressure injection molding (WID)
Internal water pressure injection molding (IWP) is a new type of plastic molding process. It is a very good choice for parts that require uniform wall thickness. It is also very effective for removing small bubbles that can damage the surface of the part. The process uses a separate pin to open the mold and insert the water. The gas then pushes the molten plastic into the secondary cavity, where it is cooled and solidified.
Compared to gas assist molding, internal water pressure injection molding is able to produce parts with thicker walls than standard processes. The process can eliminate sink marks and produce parts with up to a 50% reduction in material. It can also result in shorter cycle times. Here are some other benefits of using this technique. Once you're able to decide which process is right for you, the next step is deciding which materials to use.
When using internal water pressure injection molding, make sure to avoid weld lines. This process is most suitable for long, thick-walled parts. This method of plastic injection allows large wall thickness without resulting in sink marks, which is beneficial for many industries. You can save a great deal of material by avoiding externally angular component construction, as you will not have to weld any joints. This technology also has a shorter cycle time.
Another important factor is that it prevents the molten material from cooling too quickly. In this case, the gas is injected into the mold and the molten material is pressed against the inner wall. This creates an internal cavity, which will determine the shape of the final piece. This process is also known as internal water pressure injection molding. This technology allows you to mold complex parts with varying dimensions. It is an excellent choice for products that need a high level of tolerance to wear and tear.
The main difference between internal water pressure and external water pressure injection molding is the method of introducing water into the mold. The first major difference between the two is that water injection is similar to internal gas pressure injection molding, but it uses a different material. For example, a liquid plastic is injected into a plastic. The liquid is then forced into the mold, where it ejects the part. The second feature is that the water enables the injection of a solid part.
The water injection molding process is a promising option for glass-filled nylon automotive ducts. The water-gas pressure injection process allows for complicated shapes in attachment sections. In this way, a complex shape in one part can be produced, with high precision. Achieving this goal can be done with the help of internal water pressure injection systems. This method is highly efficient, which means it reduces the cost of the product.